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Showing results 181 to 200 of 619

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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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Combine math and exercise with this activity. Learners count how many times in a row they can skip rope or throw and catch a ball.

free Ages 4 - 14 10 to 30 minutes
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In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

$1 - $5 per group Ages 6 - 14 45 to 60 minutes
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Learners use their knowledge of color changes with red cabbage indicator to neutralize an acidic solution with a base and then neutralize a basic solution with an acid.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

$1 - $5 per student Ages 6 - 18 45 to 60 minutes
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In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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In this activity on page 4 of the PDF, learners investigate the importance of washing their hands.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

free Ages 6 - 18 Under 5 minutes
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In this activity, learners build simple alarms that they can attach to anything, such as a drawer or doorway. This activity introduces learners to electricity, circuits, and currents.

$5 - $10 per student Ages 6 - 11 45 to 60 minutes
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In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

$5 - $10 per student Ages 6 - 14 30 to 45 minutes
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In this activity, learners build an old-fashioned paddle boat out of simple materials.

$1 - $5 per student Ages 6 - 14 45 to 60 minutes
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In this activity about humans and space travel (page 1 of PDF), learners compare and contrast the behavior of a water-filled plastic bag, both outside and inside of a container of water.

1 cent - $1 per group Ages 6 - 11 45 to 60 minutes
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Learners make a "menu" of any plants in their lunch for Monday through Friday and draw the plants from their lunch.

free Ages 6 - 11 1 to 7 days
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This activity has learners interacting with live crayfish, but could be adapted for a variety of similar hardy and interesting organisms.

Over $20 per group Ages 4 - adult 10 to 30 minutes
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In this activity on page 15 of the PDF, discover how materials and physical forces behave differently at the nanoscale.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this art-related activity, learners make a coin rubbing—a process similar to what archeologists may do with ancient artifacts. This activity can be used in connection with a history or art lesson.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this activity, learners construct a paper glider to experiment with aerodynamic forces.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity (page 32 of PDF), learners investigate the nutritional needs of healthy bones and muscles.

free Ages 6 - 11 45 to 60 minutes